[PATCH] make each arch use mm/Kconfig

For all architectures, this just means that you'll see a "Memory Model"
choice in your architecture menu.  For those that implement DISCONTIGMEM,
you may eventually want to make your ARCH_DISCONTIGMEM_ENABLE a "def_bool
y" and make your users select DISCONTIGMEM right out of the new choice
menu.  The only disadvantage might be if you have some specific things that
you need in your help option to explain something about DISCONTIGMEM.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 64c13334..42ca8a3 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -172,11 +172,13 @@
 	bool
 	default y
 
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
 	bool "Internal RAM Support"
 	depends on CHIP_M32700 || CHIP_M32102 || CHIP_VDEC2 || CHIP_OPSP
 	default y
 
+source "mm/Kconfig"
+
 config IRAM_START
 	hex "Internal memory start address (hex)"
 	default "00f00000"